Flue collar fob gas ranges



Mar.- 3, 1925. 1,528,483

R. HOFFMAN FLUE COLLAR FOR GAS RANGES Filed July 18, 1921 Patented Mar. 3, 1925.

LUNITED STATES PATENT FFC.

RUDOLPH HOFFMAN, OF KANKAKEE, ILLINOIS, ASSIGNOR TO SEARS, ROEBUCK .AND CO., OF CHICAGO, ILLINOIS, A CORPORATION 0F NEYV YORK.

FLUE COLLAR FOR GAS RANGES.

Application filed July 18,

To all whom t may concern:

Be it known that I, lRUDOLPH HOFFMAN, a citizen of the United States, residing at Kankakee, in the county of Kankakee and State of illinois, have invented certain new and useful Improvements in Flue Collars for Gas Ranges, of which the Jfollowing is a specilication.

The invention relates to flue collars for gas ranges, and has tor its aim the provision of such a device which is especially adapted to lessen the cost of crating the range for shipment as well as minimize loss by injury thereto in shipment.

Flue collars for gas ranges as ordinarily constructed and arranged project upwardly from the stove top or 'frame for the purpose of receiving the lower end of the flue pipe. By reason of this arrangement of the collar, it becomes necessary in crating the stove tor shipment to make the crate large enough or otherwise especially construct it to protect this upstanding collar.

The principal object of the present invention is to provide a flue collar which eX- tends downwardly from the upper surface of the stove top and thus overcomes the ditliculties referred to.

A further object is to provide a flue collar ot advantageous construction and one which is especially adapted to prevent the user of the range from entirely closing the collar when the range is used without attachment to a flue.

The objects ot' the invent-ion thus generally stated are attained by the construction and arrangement illustrated in the accompanying drawing forming part hereof, but it is to be understood that the invention is not limited to the construction and arrangement shown in the single embodiment which l have selected for the purposes of illustration but that various changes may be made in construction, form and arrangement without departing` from the spirit and scope of the invention as expressed in the appended claims.

Figure l oi' the drawings is a fragmentary perspective view of the top of the stove equipped with my improved finev collar. Fig. 2 is a fragmentary vertical sectional view illustrating the collar as a means for preventing the opening in the frame from being closed when the flue pipe is not attached. Fig. 3 is a top plan view ot the 1921. serial No. 485,721.

rear frame member and the flue collar attached thereto.

ln' the drawings, 4f designates the top ot a gas range having a rear frame member ete. The latter has an aperture 5 therein in which the tlue collar is supported.

The collar proper is designated by the numeral (i and is of a shape corresponding to the aperture 5, which is herein made elliptical in Jforni. This collar preferably formed of' sheet metal and gradually decreases in size toward its lower end, which is provided with an inturned liange 'l' upon which the lower end c of the lue pipe a (shown in dotted lines in Fig. 2) is adapted to seat. Near the upper end oi' the collar there is provided an annular out-turned bead 8 between which and the out-turned iange 9 at the extreme upper end of the collar is formed a groove l0 for receiving the rear frame member at the edge of the opening 5. The bead 8 is of larger diameter than the aperture 5 and is adapted to yield inwardly to permit the collar to be mounted on the frame member. By this means the collar is rigidly secured in operative position in the stove top, and by reason of the peculiar shape of the collar, being somewhat larger at its upper end, the flue pipe is capable of being easily inserted thereinto and is held by a wedging engagement with the collar.

lt sometimes happens that gas ranges are used without making provision for the escape of the gases of combustion through a flue. lln such instances the tlue pipe is not attached to the line collar and the housewife or other user may attempt to close the collar by means ot a flat plate, dish or the like. To prevent such closure of the aperture thro-ugh the collar, l provide means comprising a pair of coacting members ll and 1la together constituting a spider :fitted within the collar and having rounded upper edges projecting above the horizontal plane in which the upper end of the collar lies. To provide for such interengagement of the members ll and llaN they are respectively notched at upper and lower edges as at 12; and to hold the device in fixed relation with reference to the collar, the opposite edges of the members are slotted near their lower ends as at 13 to receive the inturned liange 7 the members being made of sutlicient length to extend somewhat below the lower end olf the collar for this purpose; ln the operation or" assembling the device in the coller, the portions l/l of the nienihers below the notches 13 are hent inwardly so es to pass the flange and then outwardly into holding engagement with the lat-ter as shown in Fig. 2.

lt will. he seen that 'l have provided e support ior a line pipe, which is ot en exceedingly siniple construction and is furthermore oli' a practical character. it is capable or' heing quickly and easily secured to the sto-ve top, and simple ineens ie provided 'for preventing a user through ignorance from elo i Ag the aperture intended Yfor the outlet or the grises of combustion when the fine pipe is not employed.

l claini es iny invention:

l. in e ges range, the conihiinitien with e i'raine meinher hai ing an aperture therein, of e fine collar constructed of sheet metal and lient at its upper end intoholding enand ineans operatively engaging said 'flange and projecting above the collar while permitting o1c the passage of gases thro-ugh the collar.

In a gas range, the combination of e freine heu/'ing an lepertnre therein, :L flue collar depending into said aperture, and a spider secured within said coller and projecting ehove the plane of the upper end thereof,l seid spider comprising a pair of interengaging ineinhers one of which is detaehehly secured to the collar.

3. ln e gas range, the combination of a top having an aperture therein, a flue coller 4@cured at the upper end of said aperture and extending downwardly therefrom, and ineens adapted to prevent the complete closure thereotl by en article placed upon the upper end over the saine when e line pipe is not in use.

ln testimony whereof, I have hereunto set my hand.

RUDOLPH HOFFMAN. 

